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Clock

Clock is a free, open-source utility app for Android. Alarm, clock, timer and stopwatch mode. It has 1,170 GitHub stars and is released under the Apache-2.0 license, and you can install it from F-Droid.

github.com/BlackyHawky/Clock (opens in a new tab)

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About Clock

Clock is a privacy-conscious open-source clock, based on AOSP. Does not use internet permission, and thus is 100% offline. Features: Set alarms to a specific date; Set alarms to a specific time zone; To dismiss or snooze alarms: Support for flip and shake actions; Use the power button or volume buttons; Solve math problems. For some Snapdragon devices only, the alarm is triggered when they are switched off Unfortunately, this feature may not work on some devices despite the presence of the "com.qualcomm.qti.poweroffalarm" system app.

Privacy and F-Droid

F-Droid builds Clock from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.

No anti-features flagged on the latest F-Droid build.

Screenshots

  • Clock screenshot 1
  • Clock screenshot 2
  • Clock screenshot 3

Screenshots from the app's F-Droid listing.

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FAQ

Clock FAQ

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Is Clock free and open source?

Yes. Clock's source code is public on GitHub under the Apache-2.0 license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.

How do I install Clock?

You can install Clock from F-Droid (package com.best.deskclock); the links are on this page. Its GitHub repository also publishes releases (latest: 2.34).

Is Clock still maintained?

The repository's most recent commit was on Oct 16, 2026. Its F-Droid listing was last updated on Oct 22, 2026. appsgit only lists apps whose repository had a commit in the last six months.